DevDIY SEO Speed Image vs ECM Bulk Image Resizer
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for DevDIY SEO Speed Image, Oct 16, 2026 for ECM Bulk Image Resizer.
The short answer
- Only DevDIY SEO Speed Image lists a free plan.
- DevDIY SEO Speed Image lists 32 features ECM Bulk Image Resizer’s listing doesn’t mention, including 404 pages, AI generation, ALT text.
Head to head
SEO Image Optimizer. Image Resizer. Edit Alt Tags
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · AI writes alt text for 10 images/month
- · Compress 50 images to WebP every month
- · Enable basic lazy-load on store images
- · Restore originals within a 7-day window
- · Upgrade anytime to unlock extra quotas
- · View SEO dashboard with usage & scores
Starter
- · AI drafts meta titles and descriptions
- · AI writes alt text for 100 images/month
- · Compress 500 images to WebP every month
- · Keep 30-day backups of optimized images
- · SEO filename rewrite for 100 images/mo
- · Scan 50 store URLs for 404s & redirects
Growth
- · Batch optimize images, alt and meta data
- · CSS/JS minify plus preload key assets
- · Compress 3,000 images every month fast
- · JSON-LD Product schema auto injection
- · Keep 30-day backups of optimized images.
- · Scan 500 URLs; auto-apply 301 redirects
Plus
- · Cloudflare CDN with global edge cache
- · GSC ranking data with full SEO reports
- · Keep 30-day backups of optimized images.
- · Priority support plus custom API access
- · Unlimited AI alt, meta and JSON-LD tags
- · Unlimited WebP and AVIF image outputs
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureDevDIY SEO Speed Image helps merchants ship faster product pages and stronger SEO without juggling five apps. Compress images to WebP, generate AI alt text and meta, inject Product JSON-LD, enable lazy-load and preload, scan 404s, and create 301 redirects—plus restorable image backups. Unlock batch jobs, Cloudflare CDN, and Google Search Console insights as you.
Resize and square your store images in bulk so every photo matches. Pad to a square with your background color or crop, and set a maximum width. Small images are never stretched. Compress in the same run with a Balanced, Conservative or Custom preset and preview it first. Add alt text from templates and give files SEO-friendly names. Works on product images, plus collection and theme images if you turn them on.
- Compress product images to WebP with usage quotas and one-click restore.
- AI alt text, SEO filenames, meta titles/descriptions, and Product JSON-LD
- Theme embed: lazy-load, LCP preload, and CSS/JS minify for Core Web Vitals
- Scan broken URLs and create 301 redirects; auto-redirect when products delete
- Optimize and compress product images in clicks without losing quality.
- Resize/square photos individually or in bulk. Make them fit any sales channel!
- Set up templates & automatically update alt text for products and their options
- Automatically edit newly added images for your store to look more professional.
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  DevDIY SEO Speed Image |  ECM Bulk Image Resizer |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | DevDIY SEO Speed Image | ECM Bulk Image Resizer |
|---|---|---|
| App Store rating | Not published | 3.5 ★ |
| App Store reviews | Not published | 35 |
| New reviews, 28 days | Not enough data | 1 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | DevDIY SEO Speed Image | ECM Bulk Image Resizer |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $9.99/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 4 | Not published |
Listing
| Measure | DevDIY SEO Speed Image | ECM Bulk Image Resizer |
|---|---|---|
| Shopify category rank | #1068 | #123 |
| Shopify App Charts | Not on this week’s charts | #3 on Pricing moves in Image editor |
| Built for Shopify | No | No |
| Launched | Sep 25, 2026 | May 30, 2017 |
| Languages | 15 | 1 |
| Developer | DEVDIY | SpurIT LLC |
FAQ
DevDIY SEO Speed Image and ECM Bulk Image Resizer: common questions
- Is DevDIY SEO Speed Image or ECM Bulk Image Resizer cheaper?
- Only DevDIY SEO Speed Image lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- DevDIY SEO Speed Image lists 32 the others don’t mention, such as 404 pages, AI generation, ALT text, Analytics. ECM Bulk Image Resizer lists 1 the others don’t mention, such as Cropping. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Oct 13, 2026 for DevDIY SEO Speed Image, Oct 16, 2026 for ECM Bulk Image Resizer; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Oct 13, 2026 for DevDIY SEO Speed Image, Oct 16, 2026 for ECM Bulk Image Resizer. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.